static int ipanic_write_userspace(unsigned int off)
{
int saved_oip, rc, rc2;
unsigned int copy_count = 0;
DumpNativeInfo();
while (1) {
saved_oip = oops_in_progress;
oops_in_progress = 1;
rc = panic_dump_user_info(emmc_bounce, PAGE_SIZE, copy_count);
oops_in_progress = saved_oip;
if (rc <= 0)
break;
copy_count += rc;
rc2 = emmc_ipanic_write(emmc_bounce, off, rc);
if (rc2 <= 0) {
xlog_printk(ANDROID_LOG_ERROR, IPANIC_LOG_TAG,
"%s: Flash write failed (%d)\n", __func__, rc2);
return rc2;
}
off += rc2;
}
xlog_printk(ANDROID_LOG_DEBUG, IPANIC_LOG_TAG, "%s: count %d, strlen(NativeInfo):%d, off:%d\n", __func__, copy_count, strlen(NativeInfo), off);
return copy_count;
}
static int ipanic_write_log_buf(unsigned int off, int log_copy_start, int log_copy_end)
{
int saved_oip;
int rc, rc2;
unsigned int last_chunk = 0, copy_count = 0;
while (!last_chunk) {
saved_oip = oops_in_progress;
oops_in_progress = 1;
rc = log_buf_copy2(emmc_bounce, PAGE_SIZE, log_copy_start, log_copy_end);
BUG_ON(rc < 0);
log_copy_start += rc;
copy_count += rc;
if (rc != PAGE_SIZE)
last_chunk = rc;
oops_in_progress = saved_oip;
if (rc <= 0)
break;
rc2 = emmc_ipanic_write(emmc_bounce, off, rc);
if (rc2 <= 0) {
xlog_printk(ANDROID_LOG_ERROR, IPANIC_LOG_TAG,
"aee-ipanic: Flash write failed (%d)\n", rc2);
return rc2;
}
off += rc2;
}
return copy_count;
}
int ipanic_write_log_buf(unsigned int off, struct ipanic_log_index start, struct ipanic_log_index end)
{
int saved_oip;
int rc, rc2;
unsigned int last_chunk = 0, copy_count = 0;
#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 5, 0)
int log_copy_start = start.value;
int log_copy_end = end.value;
#else
struct kmsg_dumper dumper;
dumper.active = true;
dumper.cur_idx = start.idx;
dumper.cur_seq = start.seq;
dumper.next_idx = end.idx;
dumper.next_seq = end.seq;
#endif
while (!last_chunk) {
saved_oip = oops_in_progress;
oops_in_progress = 1;
#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 5, 0)
rc = log_buf_copy2(emmc_bounce, PAGE_SIZE, log_copy_start, log_copy_end);
BUG_ON(rc < 0);
log_copy_start += rc;
#else
rc = ipanic_kmsg_dump3(&dumper, emmc_bounce, PAGE_SIZE);
BUG_ON(rc < 0);
#endif
copy_count += rc;
if (rc != PAGE_SIZE)
last_chunk = rc;
oops_in_progress = saved_oip;
if (rc <= 0)
break;
rc2 = emmc_ipanic_write(emmc_bounce, off, rc);
if (rc2 <= 0) {
xlog_printk(ANDROID_LOG_ERROR, IPANIC_LOG_TAG,
"aee-ipanic: Flash write failed (%d)\n", rc2);
return rc2;
}
off += rc2;
}
return copy_count;
}
static void ipanic_write_mmprofile(int offset, struct ipanic_header *hdr)
{
int rc = 0;
unsigned int index = 0;
unsigned int pbuf = 0;
unsigned int bufsize = 0;
unsigned int mmprofile_dump_size = 0;
offset = ALIGN(offset, EMMC_BLOCK_SIZE);
hdr->mmprofile_offset = offset;
#ifdef MTK_MMPROFILE_SUPPORT
mmprofile_dump_size = MMProfileGetDumpSize();
if (mmprofile_dump_size == 0 || mmprofile_dump_size > IPANIC_OOPS_MMPROFILE_LENGTH_LIMIT) {
xlog_printk(ANDROID_LOG_ERROR, IPANIC_LOG_TAG, "%s: ignore INVALID MMProfile dump size 0x%x", mmprofile_dump_size);
return;
}
do {
MMProfileGetDumpBuffer(index, &pbuf, &bufsize);
if (bufsize == 0) {
hdr->mmprofile_length = index;
break;
}
index += bufsize;
rc = emmc_ipanic_write((char*)pbuf, offset, bufsize);
if (rc < 0) {
xlog_printk(ANDROID_LOG_ERROR, IPANIC_LOG_TAG, "%s: Error writing MMProfile to emmc! (%d)\n", __func__, rc);
hdr->mmprofile_length = 0;
}
else {
offset += rc;
}
} while(rc <= IPANIC_OOPS_MMPROFILE_LENGTH_LIMIT);
#else
//MTK_MMPROFILE_SUPPORT disabled, no mmprofile dumped.
hdr->mmprofile_length = 0;
#endif
}
static void __mrdump_mini_core(AEE_REBOOT_MODE reboot_mode, struct pt_regs *regs, const char *msg, va_list ap)
{
int i;
unsigned long reg, start, end, size;
loff_t offset = 0;
struct mrdump_mini_header *hdr = (struct mrdump_mini_header *)mrdump_mini_buf;
char *buf = mrdump_mini_buf + MRDUMP_MINI_HEADER_SIZE;
if (!msdc_init_panic(DUMP_INTO_BOOT_CARD_IPANIC)) {
/* ipanic init fail */
return;
}
#ifdef DUMMY
/*
* test code - write dummy data to ipanic partition
*/
memset(mrdump_mini_buf, 0x3e, MRDUMP_MINI_BUF_SIZE);
if (emmc_ipanic_write(mrdump_mini_buf, IPANIC_MRDUMP_OFFSET, MRDUMP_MINI_BUF_SIZE)) {
printk(KERN_ALERT"card_dump_func_write failed (%d)\n", i);
} else {
printk(KERN_ALERT"card_dump_func_write ok, (%d)\n", i);
}
#else
memset(mrdump_mini_buf, 0x0, MRDUMP_MINI_BUF_SIZE);
if (sizeof(struct mrdump_mini_header) > MRDUMP_MINI_HEADER_SIZE) {
/* mrdump_mini_header is too large, write 0x0 headers to ipanic */
printk(KERN_ALERT"mrdump_mini_header is too large(%d)\n",
sizeof(struct mrdump_mini_header));
offset += MRDUMP_MINI_HEADER_SIZE;
goto ipanic_write;
}
for(i = 0; i < ELF_NGREG; i++) {
reg = regs->uregs[i];
hdr->reg_desc[i].reg = reg;
if (virt_addr_valid(reg)) {
/*
* ASSUMPION: memory is always in normal zone.
* 1) dump at most 32KB around valid kaddr
*/
/* align start address to PAGE_SIZE for gdb */
start = round_down((reg - SZ_16K), PAGE_SIZE);
end = start + SZ_32K;
start = clamp(start, (unsigned long)PAGE_OFFSET, (unsigned long)high_memory);
end = clamp(end, (unsigned long)PAGE_OFFSET, (unsigned long)high_memory) - 1;
hdr->reg_desc[i].kstart = start;
hdr->reg_desc[i].kend = end;
hdr->reg_desc[i].offset = offset;
hdr->reg_desc[i].valid = 1;
size = end - start + 1;
memcpy(buf + offset, (void*)start, size);
offset += size;
} else {
hdr->reg_desc[i].kstart = 0;
hdr->reg_desc[i].kend = 0;
hdr->reg_desc[i].offset = 0;
hdr->reg_desc[i].valid = 0;
}
}
ipanic_write:
if (emmc_ipanic_write(mrdump_mini_buf, IPANIC_MRDUMP_OFFSET, ALIGN(offset, SZ_512))) {
printk(KERN_ALERT"card_dump_func_write failed (%d), size: 0x%llx\n",
i, (unsigned long long)offset);
} else {
printk(KERN_ALERT"card_dump_func_write ok (%d), size: 0x%llx\n",
i, (unsigned long long)offset);
}
#endif
}